| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Never | 1141 | 3172269 |
10%
|
| 2 | 1-3 times | 6007 | 17535952 |
55.2%
|
| 3 | 3+ times | 3755 | 11004643 |
34.6%
|
| 99 | Not stated | 13 | 55053 |
0.2%
|